mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2026-06-05 00:20:50 +00:00
Code Activity

detect quantifiers in patterns

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2026-05-21 10:37:15 -07:00
parent af7a4de258
commit af33dfaa7d
2 changed files with 26 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

21
src/ast/pattern/pattern_inference.cpp
View file

@ -254,6 +254,27 @@ void pattern_inference_cfg::collect::save_candidate(expr * n, unsigned delta) {
}
return;
}
case AST_QUANTIFIER: {
quantifier * q = to_quantifier(n);
unsigned num_decls = q->get_num_decls();
info * body_info = nullptr;
m_cache.find(entry(q->get_expr(), delta + num_decls), body_info);
if (body_info == nullptr) {
save(n, delta, nullptr);
return;
}
// The lambda/quantifier itself is a valid sub-term in a pattern.
// Propagate the free variables from the body (they already refer
// to the outer quantifier's bindings) and keep the node as-is.
expr * new_body = body_info->m_node.get();
quantifier_ref new_q(m);
if (new_body != q->get_expr())
new_q = m.update_quantifier(q, new_body);
else
new_q = q;
save(n, delta, alloc(info, m, new_q, body_info->m_free_vars, body_info->m_size + 1));
return;
}
default:
save(n, delta, nullptr);
return;